发明名称 |
Method for detecting a failure in a three-phase alternator, device for detecting failures and associated computer programme |
摘要 |
The invention concerns a method for detecting a failure in a three-phase alternator connected to a three-phase rectifier bridge. The method comprises the following steps — rectifying (70) the voltages generated by the three-phase alternator; — adding (76) the rectified voltages taken at the first and second phases in order to obtain a voltage sum; — subtracting (78), from said voltage sum, twice the rectified voltage taken at the third phase, in order to obtain a voltage difference; — comparing (80) the voltage difference to a high threshold and a low threshold; — detecting (82) a failure when the voltage difference is less than said low threshold or when the voltage difference is greater than said high threshold. The invention also concerns a device for detecting failures and an associated computer programme. |
申请公布号 |
US9500709(B2) |
申请公布日期 |
2016.11.22 |
申请号 |
US201414915179 |
申请日期 |
2014.08.12 |
申请人 |
Safran Electronics & Defense |
发明人 |
Vanoli Joël;Fourmont Tony |
分类号 |
G01R31/34 |
主分类号 |
G01R31/34 |
代理机构 |
Christensen O'Connor Johnson Kindness PLLC |
代理人 |
Christensen O'Connor Johnson Kindness PLLC |
主权项 |
1. A method for detecting a failure of a three-phase alternator connected to a three-phase rectifier bridge; said method comprising the steps of:
rectifying the voltages generated by the three-phase alternator in a first phase, a second phase, and a third phase; adding the rectified voltage sampled from the first phase, to the rectified voltage sampled from the second phase, in order to obtain a voltage sum; subtracting, from said voltage sum, twice the rectified voltage sampled from the third phase, in order to obtain a voltage difference; comparing the voltage difference to a high threshold and to a low threshold; and detecting a failure when the voltage difference is less than said low threshold or when the voltage difference is greater than said high threshold. |
地址 |
Boulogne-Billancourt FR |